No problem, we've got 8387 and 8363 to multiply
8387 × 8363 = 8363 × (8387)
+ 8363 × 7 resulting in 58541
+ 8363 × 80 that equals 669040
+ 8363 × 300 yielding 2508900
+ 8363 × 8000 what gives us 66904000

= 70140481
